2) What could prevent air pressure building up
in an air brake system in cold frosty
weather?A - Moisture in the air may form bubbles in the brake fluidB - The air will contract, reducing the pressureC - The dampness may cause valves to rustD - Moisture drawn in with the air may freeze and cause a blockage

3) 'Brake fade' is a loss of effectiveness of the
brakes, caused by their continuous use.
When would this be most likely to happen?A - On a long journeyB - On a long downhill gradientC - On the approach to hazardsD - On a long uphill gradient

4) A system for controlling the vehicle's speed
without using the footbrake isA - a secondary brakeB - an endurance brake (retarder)C - a differential lockD - an emergency air system

5) A lorry is overtaking you on a two-lane
motorway. It does not have the speed to get
past. What should you do?A - Continue at the same speedB - Be prepared to reduce your speedC - Increase your speed and force the lorry to drop backD - Brake hard to allow the other driver to cut in

6) You are driving a vehicle not fitted with antilock
brakes. How can 'wheel lock' be
controlled during heavy braking?A - By using engine brakingB - By cadence brakingC - By braking suddenlyD - By using clutch and brake together

8) To prevent 'brake fade' you should
2 answers required A - use the endurance brake (retarder)B - apply the parking brakeC - select a lower gearD - repeatedly pump the brake pedalE - select neutral for a short distance

9) The brake air pressure warning light comes
on whilst driving. You shouldA - stop and seek help without delayB - report the fault on return to your depotC - boost the pressure through added accelerationD - drain air tanks and continue normally

10) You are stationary. The air brake pressure
warning light comes on. Why should you
NOT release the parking brake?A - Because the vehicle will suddenly roll backwardsB - Because it will cause the air pressure to riseC - Because the service brake may not stop youD - Because the warning light will go out